Nortel 4050 Installation Manual page 23

Table 5 Ports 3 and 4 LED status indicators (continued)
Port speed Left LED
All speeds
All speeds Off
Right LED
Flashing Port is sending or receiving network data. Flash
frequency varies with the amount of network
traffic.
Off One or more above conditions is not met.
Nortel Secure Network Access Switch 4050 Installation Guide
Chapter 1 Overview
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